This oil pump is driven directly by the crank shaft, the front timing cover must come off, this can be done with the head on, but the chance of oil leaks is so much greater, as the lower front section of the head gasket can be damaged, this will not cause a blown head gasket only persistent oil leaks, the time of about 12 Hrs for doing this with the head off is very generous, a re build on this engine in labour hrs would be well over 20 to do it properly.
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Saturday, October 1st, 2011 AT 12:31 AM